Portable light



FIG. 1 is a perspective view of an ornamental design for a portable light;

FIG. 2 is a side view of a first side thereof, of which the opposite side is a mirror image;

FIG. 3 is a side view of a second side thereof;

FIG. 4 is a side view of a third side thereof;

FIG. 5 is an end view of a first end thereof; and,

FIG. 6 is an end view of a second end thereof.

Broken lines in the illustrations of the drawing indicate unclaimed parts of the article and/or unclaimed environment that are not part of the design herein. 

CLAIM The ornamental design for a portable light, substantially as shown and described. 